On the heels of yesterday’s mysterious image showing off a group of uniformed men armed with bows and arrows, Bryan Singer has returned to Instagram with another behind-the-scenes look at 20th Century Fox’s summer 2016 mutant ensemble, X-Men: Apocalypse. In the new image (seemingly a continuation of yesterday’s scene), assistant director Josh McLagen guides a placeholder for what Singer describes as “a mutant guided incoming owl.” Check out the full shot below!

As far as we can recall, the closest link between X-Men characters and owls specifically is Alpha Flight’s Snowbird, who has been known to take on the form of an arctic owl. Although the character debuted in X-Men comics, she is not a mutant and it’s questionable whether or not 20th Century Fox has the rights to use the character. Another distinct possibility is the mutant Nature Girl, introduced in last year’s debut issue of the second volume of “Wolverine and the X-Men.” The young figure shown in yesterday’s image could easily be the cinematic version of young Lin Li, who has the power to control animals.

Michael Fassbender, James McAvoy, Jennifer Lawrence, and Nicholas Hoult are set to lead the cast of X-Men: Apocalypse, which will also see the return of Rose Byrne as Moira MacTaggert, Evan Peters as Quicksilver, Lucas Till as Havok and newcomers Alexandra Shipp as Storm, Sophie Turner Jean Grey, Ben Hardy as Angel, Tye Sheridan as Cyclops, Olivia Munn as Psylocke and Lana Condor as Jubilee. Oscar Isaac is also starring as the film’s title antagonist with Simon Kinberg scripting from a treatment by Mike Dougherty, Dan Harris and Kinberg.

Said to be the conclusion of a trilogy started with X-Men: First Class and continued with X-Men: Days of Future Past, the Bryan Singer directed X-Men: Apocalypse is set for release on May 27, 2016.